Spring-wheel



G. CASALIS.

SPRING WHEEL. APPLICATION FILED mnso. 1m.

Patented Jan. 18, 1921.

PATENT OFFICE.

GIACOMO CALSLALIS, O1 VIAUVILLE, QUEBEC, GANADA.

srnrne-wnnnn.

Specification of Letters Patent. Patented J 18, 1921.

Application med army 30, 1919. Serial No. 274,030.

To all whom itmag concern Beit known that LGIAoo o GAsALIs, a subjectof. the King of Italy, residing at Viauville, Province of. Quebec,Canada, lhave invented certain new and useful Improvements inSpring-Wheels; and I do hereby declare that the following is a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use .thesame. j

The present invention relates to vehicle wheels and more particularly toa spring wheel adapted to be used. on heavy wherein solid. tires maybeeffectively used and have thesame effect as that of ordinary pneumatictires. An object of the present invention is to provide a resilient hubfor such wheels which will. give and take up any knocks, and jars whichare transmitted from the wheel to the vehicle when the same is passingover rough or uneven ground.

With the above and other objects in view which will hereinafter appearas the description continues, the invention consists of the novelfeatures of construction, combination and formation of parts as will behereinafter more fully described and particularlypointed out in theappended claims.

In the accompanying drawings has been shown. a simple and preferred formof the invention, itbeing, however, understoodfthat no limitation isnecessarily made to the precise structural details herein exhibited, butthe right is hereby reserved to any changes, alterations ormodifications to which recourse may be had that come within the scope ofthe claims without departing from the spirit of the invention orsacrificing the efficiency of the same.

In the accompanying drawings:

Figure 1 a side elevation of the spring wheel. embodying the presentinvention; and,

Fig. 2 is a vertical.

section taken on the line 2-2 of Fig. 1.

Referring now more particularly to the accompanying drawings whereinlike and corresponding parts are designated by similar referencecharacters throughout the several views.

The wheel as herein shown comprises a rim 1 having a solid rubber tire 2fixed in any well known manner to the outer periphery of the rim andalso connected to this rim are the radially extending spokes trucks3'having their inner ends secured within a flanged inner rim 4 i whichcasing is of a U-shaped configuration in cross section. The hub of thewheel comprises asleeve 5 which is rotatably fixed upon an axle 6 in theusual manner and is retained in position by means of the nut 7 carriedby the axle. One end ofthis sleeve 5 isprovided with a radial flange 8and secured to this flange 8 is a brake drum 9 over which may pass thebrake band. The opposite end of the sleeve 5 is threaded and secured tothis threaded por tion of the sleeve is a hub plate 10 having a radialextending flange 11 formed with one end thereof which adapted to restagainst one face of the casing 4. A cap 12 is also detachably connectedto the hub plate 10' so as to protect and cover the projecting end ofthe axle 6 and the nut 7. Slidably mounted upon the sleeve 5 is a piston13 having a cone-shaped face 14. upon which is adapted. to ride thebevel edge 15 of the flanged inner rim 1 and the outer peripheral edgesof said piston. are adapted for en is provided with the packing rings 18so as to prevent any leakage of air around the piston and the hub wall.Carried by the hub plate 10 is a laterally extending pin 19 whichprojects within a vertical slot 20 formed within the brake drum 9 andthrough a slot and pin connection the wheel is connected to the hubtherefor.

From the foregoing it is obvious that the cushion consisting of the coilspring 16 and the compressed air contained within the hub plate 10forces the piston 13 inwardly and as the wheel rests upon this piston 13should the wheel ride upon. any unevenness in the ground over which. itis traveling it would be caused to move with respect to the hub of thewheel and this piston 13 acts as resilient support for the wheel therebytaking up any knocks or jars. As the wheel is rotated the hub and thebrake drum 9 will be carried therewith and should the brake be appliedto the drum 9 the wheel will. be held against.

rotation.

Having thus fully described myinvention,

what I claim as new and desire to secure by Letters Patent is: e

LA vehicle Wheel comprising a rim, a tire carried by said rim, a hub,spokes connecting the rim and hub, said hub comprising a sleeve, a hubplate secured to said sleeve, a piston arranged within said hub plateadapted to slide upon said sleeve, said hub plate adapted to receive airunder pressure for establishing a cushion for said piston. v

2. A. vehicle wheel comprising a rim, a tire carried on said rim, a hub,spokes connecting said rim and hub, a sleeve carried by said hub, a hubplate secured to the sleeve, a piston slidably mounted on said sleeve, aflanged inner rim secured to said spokes and pneumatic means for holdingthe piston into engagement with the said flanged V inner vrim.

3. A vehicle wheel comprising aninner rim and outer rim, spokesconnecting said rims, satire for said outer rim, a hub in ed to ride onthe conical face of said piston,

a valve controlled pipe leading to said hub for introducing air underpressure for cushioning said piston and a spring surrounding said sleevewithin said hub plate for holding said piston in engagement with thebeveled edge of said inner rim.

4. A vehicle wheel comprising a flanged inner rim and an outer rim,spokes having their inner ends secured within said flanged inner rim, atire connected to said outer rim, a hub in the form of a sleeve, a hubplate secured to said sleeve and having radially extending flangesengaging one face of said inner rim, a piston slidably mounted on saidSleeve and having a cone-shaped face, said inner rim formed with abeveled edge adapted. toride upon the conical face of said piston, theouter edges 01": said piston arranged for engagement with the inner wallof said hub plate, a valve controlled. pipe for introducing air underpressure within said hub plate for cushioning said piston and a springsurrounding said sleeve within said hub plate for holding said piston inengagement with the beveled edge of said inner rim.

In witness whereof l have hereunto set my hand.

GIACOMO OASALIS.

